Tetris

Classic Tetris game with Korobeiniki music.

Screenshot

Features

• 7 standard Tetris pieces (I, O, T, S, Z, J, L)
• DAS (Delayed Auto Shift) for smooth horizontal movement
• Line clear animation with screen shake
• Multi-line clear (single, double, triple, Tetris)
• NES-style gravity speed table (30 levels)
• Score, level, and lines counter
• Next piece preview
• HDMA gradient background
• Korobeiniki music via SNESMOD
• Random piece order (seeded from frame count)

Controls

Button	Action
LEFT/RIGHT	Move piece
DOWN	Soft drop
A/X	Rotate clockwise
B	Rotate counter-clockwise
START	Start game / Pause

Architecture

• BG1 (4bpp): Playfield — border + locked blocks + falling piece
• BG2 (4bpp): HUD — score, level, lines, next piece preview
• BG3 (2bpp): Message overlay (PRESS START, PAUSED, GAME OVER)
• HDMA: Background color gradient
• SNESMOD: Korobeiniki theme music

Modules

console sprite dma background input + USE_SNESMOD := 1